dca_rsainit
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
error = dca_rsainit(ctx, mechanism, key, KM_SLEEP);
int dca_rsainit(crypto_ctx_t *, crypto_mechanism_t *, crypto_key_t *, int);
rv = dca_rsainit(&ctx, mechanism, key, kmflag);
int dca_rsainit(crypto_ctx_t *, crypto_mechanism_t *, crypto_key_t *, int);